· Private foundation
Stephen Warren Miles & Marilyn Ross Miles Foundation
Its FY2024 filing reports that it accepted unsolicited grant applications.
What you funded, over time
By grantee IRS cause code (NTEE).
A cause breakdown isn’t shown here: 44% of STEPHEN WARREN MILES & MARILYN ROSS MILES FOUNDATION’s grantee dollars fall outside its nine largest cause areas, whether because the recipient carries no IRS cause code or because its cause sits in the long tail. A chart would be mostly one residual band and misrepresent the portfolio.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k9 grants · $18k
- $10k–50k2 grants · $20k
| Recipient | Amount |
|---|---|
| UNIVERSITY OF HOUSTON | $10,250 |
| BARBARA BUSH HOUSTON LITERACY | $10,000 |
| TIMKEN MUSEUM OF ART | $5,000 |
| CORNELL UNIVERSITY | $4,000 |
| HOUSTON SYMPHONY | $3,000 |
| KIPP SCHOOLS | $2,000 |
| MUSEUM OF FINE ARTS HOUSTON | $1,700 |
| CHI OMEGA | $1,000 |
| Individual grant recipient | $550 |
| HOBBY CENTER FOUNDATION | $156 |
| MEDICALERT FOUNDATION | $100 |
Do your dollars go where the need is?
Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.
Your human-services grants (FY21–23, $230) land where the poverty rate runs at 9%, against an area that typically sits at 10%. 13% of those dollars go to grantees based in above-average-need neighborhoods. Your grants skew toward lower-need ZIPs.
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty linein the grantee’s ZIP, averaged from the tracts in that ZIP; grantee ZIP can differ from where services are delivered.
Which US states your grants reach
US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA — shown as context about the area, never attributed to your giving.
Who you back again
Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +35% since the first grant, against +22% for the ones you funded once.
24 repeat relationships — 8 still active in FY2024, 16 since wound down; 3 grantees were first funded in FY2024 (too recent to call).
How the two cohorts compare
Organizations
Total granted
Median revenue growth · since first grant
Still filing today
New vs renewed · share of each year
In FY2024, 68% of grant dollars renewed an existing relationship; $12k went to new ones.
Where new relationships form · theme of each grantee’s first grant
First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). The earliest year is left-censored: relationships that predate the data read as “new.” Theme is the grantee’s IRS cause.
Backed again, and grew
- TPTHE PUTNAM FOUNDATION DBA TIMKEN MUSEUM OF ART3× · 2022–2024 · $19k · revenue +35%
- TMTHE MUSEUM OF FINE ARTS HOUSTON4× · 2021–2024 · $17k · revenue +56%
- HSHouston Symphony Society3× · 2021–2024 · $14k · revenue +63%
Funded once
- THTexas Heart Instituteone grant, 2023 · $10k · revenue -51%
- TRTHE ROYAL OAK FOUNDATION INCgraduatedone grant, 2023 · $6k · revenue +52%
- PIPRIORY IN THE USA OF THE MOST VENERABLE ORDER OF THE HOSP / ST JOHN OF JERUSALEMgraduatedone grant, 2021 · $6k · revenue +48%
Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.
The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — a resemblance in what they say they do, not a recommendation.
Provide an independent forum for those who dare to read, think, speak, and write to advance the professional, literary, and scientific understanding of sea power and other issues critical to global security.
Chartered by a unanimous act of congress, the museum is america's national institution for the documentation, study, interpretation, and education of holocaust history and serves as our country's memorial to the victims of the holocaust.…
The museum's mission statement is: "to discover, interpret, and disseminate - through scientific research and education - knowledge about human cultures, the natural world, and the universe."
The uss constitution museum engages all ages in the story of "old ironsides" to spark excitement about maritime heritage, naval service, and the american experience.
Finance impacts everyone. as a socially relevant organization, the museum of american finance seeks to improve understanding of the influence of financial institutions and capital markets on the u.s. and global economies, and on…
The Museum of Modern Art is a private, non-profit institution chartered by the State of New York Department of Education in 1929 to foster public awareness of modern and contemporary art. (Continued in Schedule O)
The museum of the american revolution uncovers and shares compelling stories about the diverse people and complex events that sparked america's ongoing experiment in liberty, equality and self-government.
The Morgan Library & Museum celebrates and shares the history and process of human creativity from antiquity to the present day through the preservation, study, and interpretation of a dynamic and growing collection.
Advance science, engineering, and innovation throughout the world for the benefit of all. the world's largest multidisciplinary scientific society and a leading publisher of cutting-edge research through its science family of journals,…
The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
The witte museum inspires people to shape the future of texas through transformative and relevant experiences in nature, science and culture.
The foundation was created to support the archivist of the united states in the development of programs, technology, projects and materials that will introduce the archives and interpret its holdings to individuals around the world.
For reference, the grantee most central to the portfolio’s shape is The Heritage Foundation and the most unlike its peers is The National World War Ii Museum Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
For each theme you fund, this compares how the sector’s money is shifting with how your own giving is shifting.
Sector change and giving change are each shown relative to their own range, growing (right) or shrinking (left); both normalized, so inflation isn’t mistaken for growth.
Your grantees are a median of 51 years old; the field is 16. You back the established end — and your money leans older still.
The field is 22% startups (under 5 years old) — 0% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 13% of the field you don’t fund.
Age = years since IRS exemption (a founding proxy). “Closed” = auto-revocation for 3 years of non-filing — a floor on closure, not proof, and bigger established orgs lapse least. Association, not causation.
45 grantees tracked through their own filings, 2017–2025.
Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue from every source. Association, dated; never a causal claim.
Counted here: distinct organizations you funded across 2017–2025, not grant rows in a single year — so this will not match the grant count on the cover. 45 of the 82 grantees resolved in that span have returns of their own we could reconcile; the rest are funded organizations whose filings we could not track year by year.
Where your money sits — by cause, then by grantee
Each org by its size and your share of it — top-left is where you’re load-bearing
Go grantee by grantee — a decade per org, and how each moved after you funded them
A decade per grantee — revenue shaded, your grants as bars, all rows on one timeline.
- Who funds THE PUTNAM FOUNDATION DBA TIMKEN MUSEUM OF ART ↗
- Who funds THE MUSEUM OF FINE ARTS HOUSTON ↗
- Who funds Houston Symphony Society ↗
- Who funds LA JOLLA MUSIC SOCIETY ↗
- Who funds Texas Heart Institute ↗
- Who funds THE ROYAL OAK FOUNDATION INC ↗
- Who funds PRIORY IN THE USA OF THE MOST VENERABLE ORDER OF THE HOSP / ST JOHN OF JERUSALEM ↗
- Who funds Cornell University ↗
- Who funds HYDROCEPHALUS ASSOCIATION ↗
- Who funds SAN DIEGO MUSEUM OF ART ↗
- Who funds American Heart Association Inc ↗
- Who funds UC SAN DIEGO FOUNDATION ↗
- Who funds THE HERITAGE FOUNDATION ↗
- Who funds Young America's Foundation ↗
- Who funds THE CHESHIRE ACADEMY ↗
- Who funds JUDICIAL WATCH INC ↗
- Who funds CATO INSTITUTE ↗
- Who funds ADMIRAL NIMITZ FOUNDATION ↗
- Who funds THE SPIRIT OF LIBERTY FOUNDATON ↗
- Who funds MUSEUM OF CONTEMPORARY ART SAN DIEGO ↗
The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a tightly interlocked camp — most of these funders back each other's grantees too.
Open a dossier: Farrell Family Foundation · Mark E Bryant Charitable Trust · The Wilson Sexton Foundation · Seckinger Foundation Corporation · Ge Aerospace Foundation · Texas Instruments Foundation · The Ayco Charitable Foundation · The Goldman Sachs Charitable Gift Fund · Shell USA Company Foundation · Morgan Stanley Global Impact Funding Trust Inc · National Philanthropic Trust · Greater Houston Community Foundation
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. A research starting point: overlap is association, not proof of shared intent.
Government reliance of your grantees
Every dot is one organization Stephen Warren Miles & Marilyn Ross Miles Foundation funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal or a single department — and drag the year to watch it move.
- Perkins School for the Blind — 7% of income from government
- Wounded Warrior Project Inc — 0% of income from government
Government income is each org’s traced federal awards (USASpending — grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that your grant caused the public funding. Coverage is precision-first — a floor, not a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12–24 months.